Holler fob printing paper hangings



UNITED STATES TTENT OFFICE.

T. VAN DEVENTER, OF NEW BRUNSVVIGK, `NEW JERSEY.

"I ROLLER FOR PRINTING PAPER HANGINGS.

Specification of Letters Patent No. 26,887, dated December 6, 1859.

To all whom 'it may concern:

Be it known that I, Ti-monoim VAN DF.- vnN'rnn, of New Brunswick, in the county of Middlesex and State of New Jersey, have invented a new and useful Improvement in Rollers for Printing- Paper Hangings; and l do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying (ilrawings, formingl part of this specification, in which- Figure l, exhibits a longitudinal view of a roller and shaft illustrating my invention, the roller being in section and the shaft entire. Fig. 2, exhibits an end view of the 'roller and a transverse section of the shaft close, to the roller.

Similar letters of reference indicate corresponding' parts in the several figures.

The printingl rollers employed in the ,manie facturel of paper hangings by machinery are eonunonly made of wood, and one shaft is made to serve for several rollers of diti'erent patterns which a-reehanged as occasion may require, and much dil'licultyT has been experienced in so fitting and securing' the rollers that they may be removed and replaced as often desired and always be perfectly concentric with the shaft.

rlhe object of my invention is to overcome this (lil'lieulty and to this end my .invention consists in a certain coinbination of conically bored bushes fitted into the ends of the rollers, conical sliding' collars fitted with feathers and `grooves both to shaft and bushes, and nuts tilted to screw threads ou the shaft, by which the truth. of the several rollers upon the shaft is insured, and provision. is nia-de for adjusting the rollers lengthwise upon the shaft.

To enable others to malte and use my invention I will proceed to describe ils construction and operation.

A, is the wooden body of the roller bored throughout larger than the shaft C.

B, P, are two conically bored bushes made of cast iron or other suitable metal fitted into cavities provided for them in theends of the body A, and pern'ianently secured therein by screws a, o. The periphery of the roller is turned perfectly concentric to the bores of the bushes.

D, D, are two collars bored out cylindrically to fit the shaft and turned and finished externally to a conical form to tit the bushes B, B. Each of the said collars is furnished externally with a feather b, to fit a `roove in one of the bushes, andis furnished inside .with a groove to fit a feather e, on the shaft,

by which means the roller is prevented turningl on the shaft. i

E, E, are two nuts fitted to screw threads (Z, cl, eut on the shaft and serving to screw up the conical collars int-o the bushes and secure the roller to the shaft. The port-ion of the shaft between the screw threads d, (Z, which receives the collars D, D, is turned perfectly true and the length of such portion is so much less than the distance between t-he outer faces of the two collars when the latter are in their places as to permit of some longitudinal adjustment of the roller on the shaft by means of the nuts. 'lhis longitudinal zuljustmeut does not inter fere with the coneentricity of the roller with the shaft. 1

ly this mode of fittingr and securing' the rollers to the shaft, every roller, provided the bores of its bushes have the proper taper and the collars D, D, fit the shaft, will be sure to be concentric to the shaft when the collars are screwed up by the nuts, notwithstallding' the bores of the bushes may vary somewhat in size, and this taken in connection with the provision for adjustment of the roller lengthwise of the shaft constitutes the ad vantage of the invention over all previous modes of seeurinpr Wooden rollers on shafts.

l do not claim 'sepaately the fitting the body of the roller with bushes to receive a shaft. nor the use of cones upon the shaft, nor the use of feathers and grooves; but

lV hat l claim as my invention and desire to secure by Letters Patent .is-

lhe combination of the conically bored and grooved bushes B, the conical feathered collars D, D, the ftaithered and screwed shaft (l, and the nuts E, E, the whole applied and operating' as herein described.

THEO. VAN DEVEN'IER.

Witnesses MICH Il'uomss,

,HARLES M. HUGHES. 

